Bug 2514223 (CVE-2026-73137) - CVE-2026-73137 multicloud-operators-subscription: multicloud-operators-subscription: cross-namespace Secret exfiltration via HelmRelease.repo.secretRef.namespace
Summary: CVE-2026-73137 multicloud-operators-subscription: multicloud-operators-subscr...
Keywords:
Status: NEW
Alias: CVE-2026-73137
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-08-11 17:38 UTC by OSIDB Bzimport
Modified: 2026-08-20 19:45 UTC (History)
2 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-08-11 17:38:11 UTC 
A flaw was found in the multicloud-operators-subscription component of Red Hat Advanced Cluster Management (RHACM). The GetSecret() function in the HelmRelease controller honours the user-controlled secretRef.Namespace field, fetching Secrets from any namespace using the controller's cluster-privileged client. The fetched Secret's credentials are then sent as HTTP Basic Auth to an attacker-controlled Helm repository URL. A tenant with HelmRelease create permissions can exfiltrate credentials from arbitrary namespace Secrets.

Upstream repo: https://github.com/stolostron/multicloud-operators-subscription
Audited commit: 48ae4defaa5b719e0664e1de7413c96029c938bc
Jira tracker: ACM-38560
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